Muffler(sus φ90x4tip)
Part no.:
  4101-33011　(stainless tail tips)
  4101-33011C　(carbon tail tips)
Application: G30 530i / B48B20B
Discription:

Material: stainless steel（SUS304）
Main pipe: φ80mm (joint φ75)
Tail pipe: φ90mm / 4 tip
Contents: rear silencer, mid pipe
Installation: needs to cut factory exhaust .
Control valve: available.

Approved: JQR (Meet Japanese standard)

Noise level for reference
88dB at 3950 rpm